CN203972785U - A kind of core-pulling mechanism - Google Patents
A kind of core-pulling mechanism Download PDFInfo
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- CN203972785U CN203972785U CN201420319883.8U CN201420319883U CN203972785U CN 203972785 U CN203972785 U CN 203972785U CN 201420319883 U CN201420319883 U CN 201420319883U CN 203972785 U CN203972785 U CN 203972785U
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- core
- crankcase
- pulling mechanism
- fuse
- core box
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Abstract
The core-pulling mechanism that the utility model relates to, it is arranged on crankcase core box, for extracting the fuse in crankcase core box; This core-pulling mechanism includes two synchronous cylinders and for extracting the piece of taking out of fuse, this middle part of taking out piece is fixedly connected with the fuse in crankcase core box with bolt; These two synchronous cylinders are arranged on the both sides of crankcase core box abreast, and one end of its cylinder body is fixed on crankcase core box by support, and the expansion link of these two synchronous cylinders is arranged on the two ends of taking out piece regularly.The utility model is convenient to the arrangement of cylinder, and it is in the process of loosing core, and power source is stable, has guaranteed that in the process of loosing core, fuse does not ftracture, and has reduced percent defective.
Description
Technical field
The utility model relates to machinery manufacturing technology field, is specifically related to a kind of core-pulling mechanism being applied on crankcase core box.
Background technology
Crankcase core is extremely important for automobile engine, and in general, the engine of automobile is all in crankcase core, to adopt certain pouring technique, thereby forms automobile engine motor cylinder block.Therefore, the size precision of crankcase core and size had been once all very important prerequisite basis for the engine of automobile.And along with the demand of industrial flow-line, in preparing crankcase core process, everybody also wishes that yield rate is more high better.Crankcase core production process also more and more obtains everybody attention and research.In existing crankcase core production process, the fuse of crankcase core is in general all thicker, and volume is also larger, and generally all finds time in the centre of fuse.Therefore, carry out in process of production crankcase core making accurately and brought huge challenge.
In the existing technology of preparing crankcase core, be all generally that head at fuse is equipped with a cylinder, when crankcase core box is larger, the cylinder volume that it uses is also larger accordingly, and cylinder does not substantially just have place to place like this.And more random in the transmission process due to cylinder, so often can there is crankcase core owing to finding time piece in twitch process, there is cylinder action power unstable, the shake of loosing core, causes that to take out piece stuck, and fuse ftractures.The method also can cause preparation efficiency low, and core waste product is more, often can make to produce to complete on time.
Utility model content
The purpose of this utility model is to provide a kind of core-pulling mechanism for solving the problems of the technologies described above.
A core-pulling mechanism, it is arranged on crankcase core box, for extracting the fuse in crankcase core box; This core-pulling mechanism includes two hydraulic cylinders and for extracting the piece of taking out of fuse, this middle part of taking out piece is fixedly connected with the fuse in crankcase core box with bolt; These two hydraulic cylinders are arranged on the both sides of crankcase core box abreast, and one end of its cylinder body is fixed on crankcase core box by support, and the expansion link of these two hydraulic cylinders is arranged on the two ends of taking out piece regularly.
Preferably, these two hydraulic cylinders are synchronous hydraulic cylinder.
Preferably, this core-pulling mechanism further comprises two toothed rack and a worm screw; The separation of this two toothed rack is in the both sides of crankcase core box, and its one end is fixedly connected with taking out piece, and the other end is arranged on support by limit assembly, so that this two toothed rack moves in the horizontal direction in company with the expansion link of cylinder; This worm screw is arranged on the below of taking out piece, and its two ends with tooth are separately positioned in two toothed rack, and are meshed with the tooth on tooth bar.
Preferably, this tooth bar is spur rack, and its length is not less than the length of fuse in this crankcase core box.
Preferably, this two toothed rack separation is in the outside of these two synchronous cylinders.
Preferably, this support and crankcase core box are arranged to integral structure.
Due to the utilization of technique scheme, the utility model compared with prior art has following advantages:
Core-pulling mechanism provided by the utility model, arranges two hydraulic cylinders by the both sides at crankcase core box, and while making this core-pulling mechanism face larger crankcase core box, its crankcase core box has enough spaces and places hydraulic cylinder.And the utility model adopts two synchronous cylinders to be used as the power source of this core-pulling mechanism, guarantee like this to take out piece fuse in to crankcase core box and carried out the stationarity of moving in extraction process,, shake prevents from loosing core, thereby can guarantee in the process of loosing core, in crankcase core box, fuse does not ftracture, and has reduced percent defective.
Accompanying drawing explanation
Fig. 1 is the structural representation of core-pulling mechanism in preferred embodiment in the utility model;
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage more cheer and bright, below in conjunction with the specific embodiment and with reference to accompanying drawing, the utility model is further described.Should be appreciated that, these descriptions are exemplary, and do not really want to limit scope of the present utility model.In addition, in the following description, omitted the description to known configurations and technology, to avoid unnecessarily obscuring concept of the present utility model.
Refer to Fig. 1, core-pulling mechanism 100 of the present utility model is mounted on crankcase core box 200, for extracting the fuse 210 that is positioned at crankcase core box 200.The core-pulling mechanism 100 that the present embodiment preferred embodiment provides comprises two hydraulic cylinders 10 and takes out piece 20 for what extract fuse 210.
Power source when these two hydraulic cylinders 10 are loosed core for 100 pairs of crankcase core boxes 200 of this core-pulling mechanism, it provides the power while taking out piece 20 extraction fuse 210.For guarantee this core-pulling mechanism 100 in the process of loosing core to the stationarity of moving in fuse 210 extraction processes, preferably, preferably, two hydraulic cylinders being provided with 10 are synchronous hydraulic cylinder.These two hydraulic cylinders 10 are arranged on the both sides of crankcase core box 200 abreast, and this compares at present the front end that cylinder is fixed on to crankcase core box and looses core, and have been convenient to fixing to hydraulic cylinder.In these two hydraulic cylinders 10, one end of cylinder body 11 is fixed on crankcase core box 200 by support 30, the expansion link 12 of these two hydraulic cylinders 10 all with take out piece 20 and be connected, make this core-pulling mechanism 100 when work, by the stretching motion of hydraulic cylinder 10 expansion links 12, realize the effect of loosing core of taking out 20 pairs of crankcase core boxes 200 of piece.Be appreciated that the above-mentioned support 30 for fixer cylinder pressure 10 cylinder bodies 11 is preferably arranged to integral structure with crankcase core box 200.
The described piece 20 of taking out is functional component that 100 pairs of fuses of this core-pulling mechanism 210 carry out concrete extraction process.Wherein this middle part of taking out piece 20 is fixedly connected with the fuse 210 in crankcase core box 200 with bolt, and its two ends are connected and fixed respectively at two above-mentioned hydraulic cylinders 10, and can carry out the translation in horizontal direction in company with the movement of expansion link 12 in these two synchronous hydraulic cylinders 10, and then realize the effect of loosing core of this core-pulling mechanism 100.
Core-pulling mechanism 100 provided by the utility model, by the both sides at crankcase core box 200, two hydraulic cylinders 10 are set, while making this core-pulling mechanism 100 face larger crankcase core box 200, its crankcase core box 200 has enough spaces and places hydraulic cylinder 10.And the utility model adopts two synchronous hydraulic cylinders 10 to be used as the power source of this core-pulling mechanism, can guarantee like this to take out piece 20 in interior fuse 210 moves in carrying out extraction process to crankcase core box 200 stationarity,, shake prevents from loosing core, thereby can guarantee in the process of loosing core, the interior fuse 210 of crankcase core box 200 does not ftracture, and has reduced percent defective.
In order further to guarantee that this core-pulling mechanism 100 is in the process of loosing core, it takes out the stationarity that piece 20 moves.The present embodiment further comprises two toothed rack 40 and a worm screw 50; 40 separations of this two toothed rack are in the both sides of crankcase core box 200, and its one end is fixedly connected with taking out piece 20, and the other end is arranged on support 30 by limit assembly 60, so that this two toothed rack moves in the horizontal direction in company with the expansion link of cylinder; In the present embodiment, preferably, this limit assembly 60 is arranged to integral structure with support 30.This worm screw 50 is arranged on the below of taking out piece 20, and its two ends with tooth are separately positioned in two toothed rack 40, and are meshed with the tooth on tooth bar.In the present embodiment, preferably, this tooth bar 40 is spur rack, and its length is not less than the length of the interior fuse 210 of this crankcase core box 200.The present embodiment in use, its worm screw 50 is to match with tooth bar 40, make core-pulling mechanism 100 in the present embodiment when the process of loosing core, during motion that it takes out piece 20, suffered double side acting power is balanced, so just ensured that hydraulic cylinder 10 is when drive is taken out 20 pairs of crankcase core boxes 200 of piece and loosed core, the stationarity of its motion.That is, impelled 100 pairs of crankcase core boxes 200 of the core-pulling mechanism in the present embodiment loose core in process steadily.Tooth bar 40 worm screws 50 that are simultaneously provided with, have been convenient to this core-pulling mechanism location to fuse in the process of loosing core, to reduce to take out the frictional force between piece 20 and crankcase core box, and then have greatly improved service life and the production efficiency of crankcase core box.
The foregoing is only preferred embodiment of the present invention, be not limited to the utility model, all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., within all should being included in the scope of the utility model protection.
Claims (6)
1. a core-pulling mechanism, it is arranged on crankcase core box, for extracting the fuse in crankcase core box; It is characterized in that: this core-pulling mechanism includes two hydraulic cylinders and for extracting the piece of taking out of fuse, this middle part of taking out piece is fixedly connected with the fuse in crankcase core box with bolt; These two hydraulic cylinders are arranged on the both sides of crankcase core box abreast, and one end of its cylinder body is fixed on crankcase core box by support, and the expansion link of these two hydraulic cylinders is arranged on the two ends of taking out piece regularly.
2. core-pulling mechanism according to claim 1, is characterized in that: these two hydraulic cylinders are synchronous hydraulic cylinder.
3. core-pulling mechanism according to claim 1, is characterized in that: this core-pulling mechanism further comprises two toothed rack and a worm screw; The separation of this two toothed rack is in the both sides of crankcase core box, and its one end is fixedly connected with taking out piece, and the other end is arranged on support by limit assembly, so that this two toothed rack moves in the horizontal direction in company with the expansion link of cylinder; This worm screw is arranged on the below of taking out piece, and its two ends with tooth are separately positioned in two toothed rack, and are meshed with the tooth on tooth bar.
4. core-pulling mechanism according to claim 3, is characterized in that: this tooth bar is spur rack, and its length is not less than the length of fuse in this crankcase core box.
5. core-pulling mechanism according to claim 3, is characterized in that: this two toothed rack separation is in the outside of these two synchronous cylinders.
6. core-pulling mechanism according to claim 1, is characterized in that: this support and crankcase core box are arranged to integral structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420319883.8U CN203972785U (en) | 2014-06-16 | 2014-06-16 | A kind of core-pulling mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420319883.8U CN203972785U (en) | 2014-06-16 | 2014-06-16 | A kind of core-pulling mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203972785U true CN203972785U (en) | 2014-12-03 |
Family
ID=51970271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420319883.8U Active CN203972785U (en) | 2014-06-16 | 2014-06-16 | A kind of core-pulling mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203972785U (en) |
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2014
- 2014-06-16 CN CN201420319883.8U patent/CN203972785U/en active Active
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |